Lamp post



May 1, 1928.

J. W. SPEER LAMP POST Filed Feb. 23, 1926 w w 4. 7 MO MR J w /Cm I Mv lT Z, 1 I Z Patented May 1, 1928.

UNITED STATES. PATENT orrresi- JESSE W. SPEER, OF LANSING, MICHIGAN,ASSIGNOB TO NOVO ENGINE COMPANY, OF-

' LANSXNG, MICHIGAN.

LAMP PO31 Application: filed February 23, 1926. Serial No. 90,050.

This invention: relates to an improved hollow cast metal lamp poststructure.

The object of the invention is to provide such a hollow cast metalstructure with a suitable base door or cover with effective lockingmeans.

Objects relating to details and economies of construction and operationof my invention will definitely appear from the detailed description tofollow.

The invention is defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearlyillustrated in the accompanying drawing, forming a' part of thisapplication, in which:

Fig. 1 is an elevational view of a hollow cast metal lamp post embodyingthe features of my invention.

Fig. 2 is an enlarged detail sectional elevational view on line 22 ofFig. 1, through my im roved door or closure structure and the loc ingmeans therefor, the opening and closing thereof being shown by dottedlines.

Fig. 3 is an enlarged detail inside elevational view of the lock.

Fig. 1 is an enlarged detail cross sectional View on line H of Figs. 1and 2 showing the relation of the upper locating and looking lug.

Fig. 5 is an enlarged detail transverse sectional View on line 5-5 ofFigs. 1, 2 and 3, showing the relation of the door or cover and lock andthe structure of various parts.

The parts will be identified by their numerals of reference whichidentify like parts in all the views.

1 is the hollow lamp post of circular cross section with hollow base 2containing the broad bot-tom aperture 3. The base is formed with a sidedoor opening to make accessible the connections and switches for eitherelectricity or gas.

4 is the cover or door which is a segment cut out of the base of anydimension up to one-half of the circumference, preferably aboutone-third as illustrated in the accompanying drawing. This cover or doorhas a straight horizontal upper end and a straight horizontal base withvertical sides, thus constituting a segment of the circular wall. Theupper end of the door is provided with an inwardly hooking lug 41 whichengages between projecting locating lugs 11, 11 inside of the hollowpost 1. The

lower end of the cover or dooris beveled on its inner side at 42 to fita corresponding bevel 12 on the bottom of the door opening. At theinside of the base of the door is an inwardly project-ing hooked lug 43for engagement of the pivoted lock member 5 on the base.

The lock member or pivoted latch 5 is beveled at 51 and is carried onthe shouldered pivot pin 6, suitablj riveted thereto at 62 as seen inFig. 2. The pivot pin 6 is provided with a polygonal head 61, preferablyhaving five sides. This head is located in the recess formed by theraised rib 21 on the base, so that it will not be easy to get at thehead to turn it with a cold chisel or similar means, or to grasp it witha pair of pliers or any other device than a special wrench that fits thespecial polygonal head. The head is also protected from accidental blowsthat would loosen the fastenmg.

The operation of my device clearly appears from Fig. 2. The upper lug llis in serted between the locating lugs 11, 11 and the cover door isswung to place with the beveled lower edge against the beveled seat toreceive the same. The lock 5 being beveled is turned into place by thespecial wrench and wedges the parts very securely together. The door ispractically inaccesible to anyone not having the special wrench foroperating it.

I have shown the improved post with an integral base. The base of coursemight be made a separate part, but my device; is especially adapted toan integral base structure, and I desire to claim the same in thatrelation as well as broadly.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. A cast metal post of circular cross section with an integral hollowbase, a door opening in said base with a door therefor forming aperipheral segment of the wall having a square top with inwardly andupwardly engaging hooked lug and having a bottom beveled on its inneredge, and a downwardly hooked integral bracket lug within and near thebottom of said door, a wedge-shaped pivoted locking latch for engagementwith said bottom lug to wedge the door to place, a shouldered pivotextending through the base wall for said locking latch with a polygonalhead, a projection forming a recess on the outside of the post embracingand protecting said head, coacting as described for the purposespecified.

2. A. cast metal post of circular cross section with an integral hollowbase, a door opening in said base with a door therefor forming aperipheral segment of the wall having a square top with inwardly andupwardly engaging hooked lug and having a. bottom beveled on its inneredge and a downwardly hooked integral bracket lug within and near thebottom of said door, a Wedge-shaped pivoted locking latch for engagementwith said bottom lug to wedge the 1 door, and a shouldered pivoten'ttznding through said base wall for said locking latch, coactiug asdescribed for the purpose specified.

In witness whereof I have hereunto set 2 my hand.

JESSE 1V. SPEER.

